Question

What is the value of expression? 5^−8 • 5^−4

A.5^32


B.5^4


C.5^-4


D.5^-12

Answer 1

@kobeni-chan

Answer 2

@DanJS

Answer 3

recall
a^x * a^y = a^x+y)

Answer 4

sure

Answer 5

for the same base to exponents, you can combine them by adding the exponents

Answer 6

when the like bases are multiplied

Answer 7

Its c

Answer 8

i did the problem and i got C

Answer 9

\[5^{-8} * 5^{-4} = 5^{-8 + (-4)}\]

Answer 10

not really concerned with the answer, more so of the process you did to get to the answer

Answer 11

so the answer is 5 to the -8+(-4) power

Answer 12

ohh its B

Answer 13

Just remember this

\[A ^{x} * A ^{y} = A ^{x+y}\]

Answer 14

has to be the same base to apply that, in this case it was 5

Answer 15

so it b

Answer 16

-8+(-4) = -8-4 = -12

Answer 17

thx

Answer 18

5^(-12)